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California Friction Testing At MnROADs (CA-342). How Things Work November 12, 2008. CA342 Friction Testing. CA-342 Equipment Operation. Slide. Release. Distance Measuring Scale. Springs. Smooth Tire. Stand. 6 mm Offset Above Pavement. Shipping and Crating.

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California friction testing at mnroads ca 342

California Friction Testing At MnROADs (CA-342)

How Things Work

November 12, 2008



Ca 342 equipment operation
CA-342 Equipment Operation

Slide

Release

Distance Measuring Scale

Springs

Smooth Tire

Stand

6 mm Offset Above Pavement



Calibration of the equipment
Calibration of the Equipment

WD 40

Glycerin Container

Power Cable

Environmental Trays

Serrated Edge Calibration Plate

Mounting Plate


Mnroads test locations
MnROADs Test Locations

  • Seven Friction Tests Conducted at Each Location (0, 5, 15, 30, 45, 90, 0 degrees)

  • Three Locations Tested within Each Cell

  • MnROADs Cells Tested

    • Cell 7 NGCS

    • Cell 8 CDG

    • Cell 9 NGCS Lite

    • Cell 10 RTT

    • Cell 13 Astro Turf

    • Cell 15 AC


Operation of test device for determining effect of test angle on friction value
Operation of Test Device for Determining Effect of Test Angle on Friction Value

0

5

15

30

45


Testing at 90 degrees
Testing at 90 Degrees Angle on Friction Value



Friction as a function of test angle
Friction as a Function of Test Angle Angle on Friction Value


Questions

Questions? Angle on Friction Value


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